CN108999203A - A kind of construction method of steel cylinder well - Google Patents
A kind of construction method of steel cylinder well Download PDFInfo
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- CN108999203A CN108999203A CN201811148774.3A CN201811148774A CN108999203A CN 108999203 A CN108999203 A CN 108999203A CN 201811148774 A CN201811148774 A CN 201811148774A CN 108999203 A CN108999203 A CN 108999203A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D23/00—Caissons; Construction or placing of caissons
- E02D23/08—Lowering or sinking caissons
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- General Life Sciences & Earth Sciences (AREA)
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- General Engineering & Computer Science (AREA)
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Abstract
The invention discloses a kind of construction methods of steel cylinder well, comprising: determines the position for needing to be arranged steel cylinder well；Steel cylinder is sunk down into target position with pipe-rocking machine, forms steel cylinder well, target position is position of the upper surface of topmost steel cylinder at the 20cm-30cm of ground.The construction method of steel cylinder well provided by the invention, steel cylinder is during sinking by the shaking of pipe-rocking machine, steel cylinder can be increased to the pressure of the unit area soil body, and steel cylinder can generate impact force to soil during shaking, accelerate the subsidence velocity of steel cylinder, the construction efficiency for improving steel cylinder well, avoids impacting resident living and increase construction cost due to construction efficiency is low.
Description
Technical field
The present invention relates to pipe jacking construction technique fields, more specifically to a kind of construction method of steel cylinder well.
Background technique
Jacking construction is a kind of piping laying construction technology do not excavated or excavated less.Jacking construction is exactly in working pit
The interior top power generated by jacking device, overcomes the frictional force of pipeline and surrounding soil, pipeline is headed into soil by the gradient of design
In, and the earthwork is transported.
Open caisson construction can be used in the prior art, mostly use reinforced concrete structure, armored concrete greatly in open caisson construction
Structure overcomes the frictional force with surrounding soil under the action of the top power and self gravity that jacking device generates, by being pre-designed
The gradient sink.In sinking watching, need constantly to transport the earthwork in working pit, in order to avoid influence under reinforced concrete structure
It is heavy.
This open caisson construction mode, reinforced concrete structure subsidence velocity is very slow, influences construction efficiency, and actual life
In, this form of construction work mainly applies to urban project construction, and construction efficiency is low, and the normal life of city dweller can be made by shadow
It rings, while also will increase construction cost.
It is that current those skilled in the art are urgently to be resolved in conclusion how to avoid the problem that jacking construction low efficiency
Problem.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of construction method of steel cylinder well, during raising jacking construction
Efficiency avoids impacting resident living and the increase of construction cost because construction efficiency is low.
To achieve the goals above, the invention provides the following technical scheme:
A kind of construction method of steel cylinder well, comprising:
Determine the position for needing to be arranged steel cylinder well；
Steel cylinder is sunk down into target position with pipe-rocking machine, forms the steel cylinder well, the target position is described in topmost
Position of the upper surface of steel cylinder at the 20cm-30cm of ground.
Preferably, the determination needs to be arranged the position of steel cylinder well, comprising:
S11: the pre-selected locations for needing to be arranged the steel cylinder well are determined；
S12: the undergrounds of the pre-selected locations of the steel cylinder well is detected with the presence or absence of secretly burying or pipeline；
S13: if secretly burying or pipeline is not present, it is determined that the pre-selected locations for needing to be arranged the steel cylinder well are to need to be arranged
The position of the steel cylinder well；It secretly buries if it exists or pipeline, then returns to the S11.
It is preferably, described to be sunk down into steel cylinder before target position with pipe-rocking machine, further includes:
One is excavated for placing the pit-hole of first section steel cylinder in the position for needing to be arranged the steel cylinder well, and the head is saved into steel
Cylinder is placed in the pit-hole；
The second section steel cylinder is set in the upper surface of the first section steel cylinder, and the head is saved into steel cylinder and the second section steel cylinder
Interface alignment, be welded to connect；
The first section steel cylinder of welded connecting or the second section steel cylinder are clamped with the pipe-rocking machine.
Preferably, it is described the first section steel cylinder is placed in the pit-hole before, further includes: by the first section steel cylinder
It is cut into zigzag in bottom.
Preferably, described that steel cylinder is sunk down into target position with pipe-rocking machine, form the steel cylinder well, comprising:
S21: being arranged another steel cylinder in the upper surface of the steel cylinder well, and by the steel cylinder well and another steel cylinder
Interface alignment, be welded to connect, sink down into the target position；
S22: measuring whether the steel cylinder well sinks down at designed elevation, meets at the designed elevation for the steel cylinder well
The depth location of required sinking when design requirement；
S23: if the steel cylinder underground is sink at the designed elevation, terminate；If the steel cylinder well does not sink down into institute
It states at designed elevation, then returns to the S21.
Preferably, the target position is sunk down into described in the S21, comprising: using rigid with oil cylinder in the pipe-rocking machine
Property connection clamping device the steel cylinder well is clamped；During the steel cylinder underground is heavy, the oil cylinder drives the steel cylinder
Above and below well, roll.
Preferably, described that the steel cylinder well is clamped it with oil cylinder rigidly connected clamping device using in the pipe-rocking machine
Before, further includes:
The pipe-rocking machine is connect with the digging machine with hydraulic control system.
Preferably, described that steel cylinder is sunk down into target position with pipe-rocking machine, it is formed after the steel cylinder well, further includes:
Pipe laying, inspection shaft inside the steel cylinder well；Connection between all steel cylinders is cut and is disconnected；It will be in the steel cylinder well
The steel cylinder in addition to the steel cylinder described in the bottommost takes out.
Preferably, described inside the steel cylinder well before pipe laying, inspection shaft, further includes: will be in the steel cylinder well
Portion is excavated to cutting depth, and back cover；The cutting depth are as follows:
H=h1-r+h2+d；
Wherein, H is the cutting depth；h1For the depth for meeting the requirements the required pipeline commissioning in design process
Degree；R is the exradius perpendicular to the maximum pipeline of the steel cylinder well central axial direction；h2To promote platform height；d
For the back cover thickness of the steel cylinder bottom.
The construction method of steel cylinder well provided by the invention first has to determine the position for needing to be arranged steel cylinder well；Then it is needing
The position installation pipe-rocking machine of steel cylinder well is set；Steel cylinder is sunk down into target position with pipe-rocking machine.
The construction method of steel cylinder well provided by the invention, steel cylinder during sinking by the shaking of pipe-rocking machine, can be with
Make steel cylinder to the pressure increase of the unit area soil body, and impact force can be generated to soil during steel cylinder shakes,
Accelerate the subsidence velocity of steel cylinder, improves the efficiency of steel cylinder well construction, avoid causing shadow to resident living due to construction efficiency is low
Loud and construction cost increase.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the flow diagram of specific embodiment one provided by the present invention；
Fig. 2 is the flow diagram of specific embodiment two provided by the present invention；
Fig. 3 is the flow diagram of specific embodiment three provided by the present invention；
Fig. 4 is the flow diagram of specific embodiment four provided by the present invention；
Fig. 5 is the flow diagram of specific embodiment five provided by the present invention；
Fig. 6 is the flow diagram of specific embodiment six provided by the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Core of the invention is to provide a kind of construction method of steel cylinder well, and construction efficiency can be improved, and reduces construction cost.
Fig. 1-6 is please referred to, Fig. 1 is the flow diagram of specific embodiment one provided by the present invention；Fig. 2 is institute of the present invention
The flow diagram of the specific embodiment two of offer；Fig. 3 is the flow diagram of specific embodiment three provided by the present invention；Figure
4 be the flow diagram of specific embodiment four provided by the present invention；Fig. 5 is the stream of specific embodiment five provided by the present invention
Journey schematic diagram；Fig. 6 is the flow diagram of specific embodiment six provided by the present invention.
Referring to FIG. 1, the construction method of steel cylinder well provided by the present invention the following steps are included:
Step S1: the position for needing to be arranged steel cylinder well is determined.
In above-mentioned steps, steel cylinder well can may be received well for active well, determine with specific reference to actual conditions；Wherein
Active well is the open caisson for installing pipe jacking equipment, jacking；Received well for the pipeline connection of active well institute jacking open caisson；This hair
It is that drift sand and all kinds of soil layers are regional that the construction method of steel cylinder well provided by bright is applied to geological conditions more, with not being suitable for rock
Layer.
The position of steel cylinder well when the position for needing to be arranged steel cylinder well being previously mentioned in this step is formal construction.
Step S2: sinking down into target position for steel cylinder with pipe-rocking machine, forms steel cylinder well, and target position is topmost steel cylinder
Position of the upper surface at the 20cm-30cm of ground.
In above-mentioned steps, pipe-rocking machine can be used that steel cylinder is sunk down into target position, steel cylinder is during sinking, pipe-rocking machine
It will drive steel cylinder shaking.
It needs to be further illustrated, when steel cylinder well only has a section steel cylinder, and steel cylinder height is smaller, then need not
To use pipe-rocking machine that steel cylinder sinks；When steel cylinder well has two sections or the above steel cylinder of two sections, pipe-rocking machine can be used will be except head
All steel cylinders except section steel cylinder sink one by one；When steel cylinder well only has a section steel cylinder but steel cylinder height is larger, can be used
Pipe-rocking machine slowly sinks it.It is specific whether to be judged as the case may be using pipe-rocking machine.
The construction method of steel cylinder well provided by the invention, steel cylinder can shake in sinking watching under the drive of pipe-rocking machine,
Steel cylinder can be increased to the pressure of the unit area soil body, and impact force can be generated to soil during shaking, made
The subsidence velocity of steel cylinder is accelerated, and improves the construction efficiency of steel cylinder well, avoids impacting resident living due to construction efficiency is low
With the increase of construction cost.
Referring to FIG. 2, above-mentioned steps S1 includes:
Step S11: the pre-selected locations for needing to be arranged steel cylinder well are determined.
In above-mentioned steps, need to be arranged the pre-selected locations of steel cylinder well, for steel cylinder well determining in design or measurement process
Position, not necessarily steel cylinder well finally determined by position.
Step S12: the underground of the pre-selected locations of detection steel cylinder well is with the presence or absence of secretly burying or pipeline.
In above-mentioned steps, Underground is needed with the presence or absence of secretly burying or when pipeline to needing to relate to during steel cylinder well construction
And the part excavated is detected.
Step S13: if secretly burying or pipeline is not present, it is determined that the pre-selected locations for needing to be arranged steel cylinder well are to need to be arranged
The position of steel cylinder well；It secretly buries if it exists or pipeline, then return step S11.
In technical solution provided by the present embodiment, it can have and secretly bury or the structure of pipeline is visited in advance over the ground
It surveys, avoids in digging process, to secretly burying or the destruction of pipeline, it is also possible to avoid invalid work progress, improve construction effect
Rate.
Referring to FIG. 3, before above-mentioned steps S2 further include:
Step S201: one is excavated for placing the pit-hole of first section steel cylinder in the position for needing to be arranged steel cylinder well, head is saved
Steel cylinder is placed in pit-hole.
In above-mentioned steps, since steel cylinder needs to be embedded to underground certain depth during sinking, to guarantee that steel cylinder sinks
Direction will not glance off, so needing first to excavate the pit-hole for placing first section steel cylinder, and head section steel cylinder is placed in hole
In hole.
It needs to be illustrated, steel cylinder used in general work progress is 2m, so can be in the position of steel cylinder well
The pit-hole that a depth is 1.8m or so is dug, the size of pit-hole can be smoothly put into slightly larger than steel cylinder outer diameter, steel cylinder,
Wherein the depth of pit-hole is not less than 1m；The height of certain steel cylinder can also be the other sizes in addition to 2m, when for other sizes,
Need to guarantee that first save can consolidate fixed and can smoothly be clamped, shake by pipe-rocking machine after steel cylinder is put into pit-hole.
Step S202: being arranged the second section steel cylinder in the upper surface of first section steel cylinder, and by first section steel cylinder and the second section steel cylinder
Interface alignment is welded to connect.
In above-mentioned steps, the second section steel cylinder is the steel cylinder connecting with the upper surface of first section steel cylinder, places it in first section first
The top of steel cylinder, the position of mobile second section steel cylinder, until first section steel cylinder is aligned with the interface of the second section steel cylinder, i.e., first section steel cylinder
The central axis of central axis and the second section steel cylinder substantially overlap；Then interface is welded to connect.
In order to not influence the normal sinking of steel cylinder, under the premise of meeting the requirements, can be welded in the inside of steel cylinder,
Weld flush is avoided to impact the sinking of steel cylinder.
It needs to be illustrated, the second section steel cylinder and first section steel cylinder can be the different steel cylinder of height, apply for convenience
Work and design, it is preferred that the second section steel cylinder is the identical steel cylinder of size with head section steel cylinder.
Interface alignment, the purpose being welded to connect are that first section steel cylinder is allow to be fixed together with the second section steel cylinder, it is ensured that
In sinking watching, bear surrounding soil pressure effect, pipe-rocking machine shaking effect under, the two without departing from.
Step S203: the first section steel cylinder of welded connecting or the second section steel cylinder are clamped with pipe-rocking machine.
In the present invention, the general name of pipe-rocking machine are as follows: the vertical pit type pipe-rocking machine with clamping action, pipe-rocking machine are equipped with clamping dress
It sets, steel cylinder can be clamped, facilitate and subsequent steel cylinder is rocked.
It needs to be illustrated, for convenience clamps steel cylinder, the size of the clamping device of pipe-rocking machine needs and steel cylinder
Outer diameter match, so during installing pipe-rocking machine, need the size according to steel cylinder outer diameter, selection matches with it
The pipe-rocking machine of conjunction.
Need to be further illustrated, the size of common steel cylinder are as follows: internal diameter 2590mm, internal diameter be 2090mm and
Internal diameter be 1890mm these three, and the wall thickness of these three steel cylinders is 20mm, and these three steel cylinders can shaking with same model
Pipe machine is clamped, used pipe-rocking machine model φ 2590mm type pipe-rocking machine.
In addition, the position that pipe-rocking machine clamps herein can be first section steel cylinder, it is also possible to the second section steel cylinder, can also be first
The link position of steel cylinder and the second section steel cylinder is saved, this will not be repeated here.
Technical solution provided by the present embodiment has done preparation for the sinking of subsequent steel cylinder, has made subsequent steel cylinder under
In heavy process, it can sink along angle is determined, avoid glancing off, and pipe-rocking machine clamps the steel cylinder of welded connecting, it can
So that the sinking of subsequent steel cylinder is more smooth.
Before head section steel cylinder is placed in pit-hole in step S201, further includes:
Step S2011: zigzag is cut into the bottom of first section steel cylinder.
In above-mentioned steps, since steel cylinder is during sinking, certain pressure can be generated to the bottom surface of pit-hole, and when hole
When the pressure for the unit area that hole bottom surface is born is bigger, the easier sinking of steel cylinder, therefore the bottom of first section steel cylinder can be cut
Toothing reduces the area that first section steel cylinder bottom is contacted with pit-hole bottom surface, since cut-out is for entire steel cylinder
Quality very little has little influence on the size that steel cylinder generates pressure to pit-hole bottom surface, can be ignored；In addition, due to PS=F,
Wherein P is the pressure of unit area, and S is area, and F is pressure, and in the case where pressure F is constant, the reduction of area S can make list
The pressure P increase and decrease of plane product, therefore steel cylinder becomes larger to the pressure for the unit area that pit-hole bottom surface generates, to make first section steel cylinder more
It is easy, therefore improves the subsidence velocity of steel cylinder.To further increase construction efficiency.
It needs to be illustrated, it, can be in order to improve the subsidence velocity of steel cylinder under the premise of not influencing construction quality
10cm is set by the zigzag tooth depth of first section steel cylinder bottom.
Certainly, it may be otherwise and other shapes be cut into the bottom of first section steel cylinder, need to only be mentioned under the premise of meeting the requirements
The efficiency that high steel cylinder sinks.
Referring to FIG. 4, step S2 includes:
Step S21: being arranged another steel cylinder in the upper surface of steel cylinder well, and steel cylinder well is aligned with the interface of another steel cylinder,
It is welded to connect, sinks down into target position.
In the actual operation process, steel cylinder underground is first sink to the upper surface of the steel cylinder of its topmost apart from ground by meeting
When 20cm-30cm or so, then in another steel cylinder of the upper surface of steel cylinder well topmost steel cylinder setting, another steel cylinder and steel cylinder herein
The interface of well junction needs to be aligned, and is welded to connect.
In order to not influence the normal sinking of steel cylinder, under the premise of meeting the requirements, can be welded in the inside of steel cylinder,
Weld flush is avoided to impact the sinking of steel cylinder.
Step S22: whether measurement steel cylinder well sinks down at designed elevation, meets design requirement at designed elevation for steel cylinder well
The depth location that Shi Suoxu sinks.
It, can be by calculating the quantity of sinking steel cylinder and multiplying for steel cylinder height when steel cylinder height is consistent in above-mentioned steps
Product subtracts height of the steel cylinder well topmost apart from ground, to judge whether steel cylinder well sinks down at designed elevation；When steel cylinder height
When inconsistent, height of the steel cylinder well topmost apart from ground can be subtracted, to judge by the summation of all steel cylinder height of calculating
Whether steel cylinder well sinks down at designed elevation.
Step S23: if steel cylinder underground is sink at designed elevation, terminate；If steel cylinder well is not sunk down at designed elevation,
Then return step S21.
Technical solution provided by the present embodiment can solve the subsidence problems of the steel cylinder well including more piece steel cylinder, process
Clearly, easy to operate.
It needs to be illustrated, this programme is primarily adapted for use in the case where steel cylinder well depth is 0~15m.
Referring to FIG. 5, sinking down into target position in step S21, comprising:
Step S211: steel cylinder well is clamped with oil cylinder rigidly connected clamping device using in pipe-rocking machine.
Clamping device and oil cylinder in pipe-rocking machine are rigidly connected, and clamping can be driven to fill to guarantee oil cylinder during the motion
It sets and moves together, and clamping device clamps steel cylinder, it is thereby achieved that the shaking of steel cylinder.
Step S212: during steel cylinder underground is heavy, oil cylinder drives steel cylinder well or more, rolls.
Pipe-rocking machine have can up and down, the flexible oil cylinder in left and right, drive steel cylinder the right and left continuously to rock up and down by oil cylinder,
I.e. when left one side of something of steel cylinder lifts, right half of sinking；When right one side of something lifts, left half of sinking；And with it is slight it is clockwise,
Alternate rotation counterclockwise, i.e., one smaller angle of fine rotation clockwise, then transfers back to original position counterclockwise, rotates repeatedly.By
The left rotation and right rotation of pipe-rocking machine hydraulic system, to drive steel cylinder cutting soil, sink.
Technical solution provided by the present embodiment can make to improve the speed that steel cylinder sinks, to improve construction efficiency.
Before step S211 further include:
Step S2110: pipe-rocking machine is connect with the digging machine with hydraulic control system.
In the prior art pipe-rocking machine do not have hydraulic control system, therefore pipe-rocking machine need in the process of work with it is other
The hydraulic control system of equipment or the connection of independent hydraulic control system, to control the clamping device and the normal work of oil cylinder of pipe-rocking machine
Make.
The hydraulic control system of pipe-rocking machine and digging machine is connected, while pipe-rocking machine being made to work normally, digging machine may be used also
To dig out the soil body in steel cylinder well, achieve the purpose that steel cylinder quickly sinks.
Referring to FIG. 6, after step S2, further includes:
Step S3: pipe laying, inspection shaft inside steel cylinder well.
In above-mentioned steps, inside steel cylinder well during pipe laying, not only need to install flat with steel cylinder short transverse
Capable pipeline will also install the pipeline vertical with steel cylinder short transverse.When installing the pipeline vertical with steel cylinder direction, mostly use
Active well is connected to by miniature jacking construction mode with received well.
The specific size of inspection shaft or position can be determines according to actual conditions；Enter inspection in order to facilitate maintenance personal
Ladder can be arranged in well in inspection shaft；In view of bottom might have ponding in inspection shaft, can be adopted bottom in inspection shaft
Back cover is carried out with underwater concreting form.
Step S41: the connection between all steel cylinders is cut and is disconnected.
Step S42: the steel cylinder in steel cylinder well in addition to bottommost steel cylinder is taken out.
In above-mentioned steps, pipeline and after checking that well construction is completed, in this way it is no longer necessary to the support action of steel cylinder, therefore can be with
Steel cylinder is taken out.But due to having orthogonal pipeline in head section steel cylinder, and perpendicular to the pipeline of steel cylinder well short transverse
The side wall of first section steel cylinder is had passed through during connecting active well and received well, therefore first section steel cylinder cannot be removed.It can be with
By the welded connecting cutting machine between all steel cylinders or other equipment cutting, disconnect, it then will be except first section steel using pipe-rocking machine
Steel cylinder except cylinder takes out.
In order to which the steel cylinder after taking out may be reused, surface cleaning processing can be done to the steel cylinder of taking-up.
Technical solution provided by the present embodiment may be implemented the reuse of steel cylinder, reduce construction cost, complies with
The theory of green construction.
Before step S3, further includes:
Step S30: by steel cylinder well inner excavation to cutting depth, and back cover；Cutting depth are as follows:
H=h1-r+h2+d；
Wherein, H is cutting depth；h1For the depth of pipeline commissioning identified in design process；R is perpendicular to steel cylinder well
The maximum pipeline exradius of central axial direction；h2To promote platform height；D is the back cover thickness of steel cylinder bottom.
In above-mentioned steps, cutting depth is worked as after steel cylinder sinks down at designed elevation, and the soil body inside steel cylinder is dug out；It opens
It needs to dig in steel cylinder to cutting depth using long-armed digging machine during digging, and carries out bottom finishing operations, for soft soil foundation
And the higher ground of level of ground water, after the completion of excavation, need to be rapidly performed by bed course back cover, back cover thickness at least 500mm.
Preferably, before bed course pours, since cutting depth has been likely to be breached artesian aquifer in cylinder, hydraulic pressure is big, cheats internal water accumulation
It is more, underwater concreting form is used when bed course pours, naturally it is also possible to the method met the requirements using other, herein not
It repeats.
In order to avoid bearing course emits water, after the completion of shaft bottom is smooth, the wood equal with cylinder diameter can be placed in shaft bottom
Mould, equal diameter certainly herein is not identical, as long as can guarantee that wooden model can be put into inside steel cylinder, and and steel cylinder
Inner wall fits closely；The water emerged in this way can be absorbed by wooden model, and be dispersed to steel cylinder inner wall, up be emitted along steel cylinder inner wall
Water, steel cylinder bottom water is tranquiler, and will not emit water in the middle part of steel cylinder, it can be ensured that underwater concrete hardening, molding.
Wherein, pipe design absolute altitude is designed size during layout design, that is, be laid with and steel cylinder
The length of the parallel pipeline of central axial direction；Promoting platform is for setting for connecting line between active well and received well to be arranged
It is standby, need the Space-Work inside steel cylinder well close to bottom surface, with miniature pipe jacking construction method by active well and received well it
Between be connected to；After back cover is completed with a thickness of steel cylinder well inner excavation, the bed course being arranged for waterproof, the formation side of specific bed course
Method has associated description in step s 30, and this will not be repeated here.
Due to existing inside steel cylinder and the pipeline of steel cylinder well centerline axis parallel, there is also with steel cylinder well central axis upright
Pipeline；So the pipeline of two vertical direction is and steel cylinder well centerline axis parallel in the overall length of steel cylinder well central axial direction
Duct length, in addition the maximum exradius with the pipeline of steel cylinder well central axis upright.Certainly, herein with steel cylinder central axis
The quantity of parallel pipeline, with the quantity of the pipeline of steel cylinder central axis upright according to the actual situation depending on, this will not be repeated here.
And thickness shared by back cover promotes occupied height in the platform course of work that cannot be used to be laid with pipeline, so
Cutting depth=pipe design absolute altitude-pipeline exradius+propulsion platform height+back cover thickness.
Technical solution provided by the present embodiment can obtain the cutting depth in steel cylinder, keep work progress more accurate,
Improve construction quality.
It needs to be illustrated, the digging process in steel cylinder is generally operated using long-armed digging machine, due to general
The most depth that long-armed digging machine can excavate is 15m, so the construction method of steel cylinder well provided by the present invention is relatively specific for out
Dig steel cylinder well of the depth between 0-15m.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.All realities provided by the present invention
Any combination mode of example is applied in the protection scope of the invention, this will not be repeated here.
The construction method of steel cylinder well provided by the present invention is described in detail above.It is used herein specifically a
Principle and implementation of the present invention are described for example, and it is of the invention that the above embodiments are only used to help understand
Method and its core concept.It should be pointed out that for those skilled in the art, not departing from the principle of the invention
Under the premise of, it can be with several improvements and modifications are made to the present invention, these improvement and modification also fall into the claims in the present invention
Protection scope in.
Claims (9)
1. a kind of construction method of steel cylinder well characterized by comprising
Determine the position for needing to be arranged steel cylinder well；
Steel cylinder is sunk down into target position with pipe-rocking machine, forms the steel cylinder well, the target position is steel cylinder described in topmost
Position of the upper surface at the 20cm-30cm of ground.
2. the construction method of steel cylinder well according to claim 1, which is characterized in that the determination needs to be arranged steel cylinder well
Position, comprising:
S11: the pre-selected locations for needing to be arranged the steel cylinder well are determined；
S12: the undergrounds of the pre-selected locations of the steel cylinder well is detected with the presence or absence of secretly burying or pipeline；
S13: if secretly burying or pipeline is not present, it is determined that need to be arranged the pre-selected locations of the steel cylinder well for described in needing to be arranged
The position of steel cylinder well；It secretly buries if it exists or pipeline, then returns to the S11.
3. the construction method of steel cylinder well according to claim 1, which is characterized in that described to be sunk down into steel cylinder with pipe-rocking machine
Before target position, further includes:
One is excavated for placing the pit-hole of first section steel cylinder in the position for needing to be arranged the steel cylinder well, and the first section steel cylinder is put
It is placed in the pit-hole；
The second section steel cylinder is set in the upper surface of the first section steel cylinder, and connecing the first section steel cylinder and the second section steel cylinder
Mouth alignment is welded to connect；
The first section steel cylinder of welded connecting or the second section steel cylinder are clamped with the pipe-rocking machine.
4. the construction method of steel cylinder well according to claim 3, which is characterized in that described to be placed in the first section steel cylinder
Before in the pit-hole, further includes:
Zigzag is cut into the bottom of the first section steel cylinder.
5. the construction method of steel cylinder well according to claim 1, which is characterized in that described to be sunk down into steel cylinder with pipe-rocking machine
Target position forms the steel cylinder well, comprising:
S21: being arranged another steel cylinder in the upper surface of the steel cylinder well, and connecing the steel cylinder well and another steel cylinder
Mouth alignment is welded to connect, and sinks down into the target position；
S22: measuring whether the steel cylinder well sinks down at designed elevation, meets design at the designed elevation for the steel cylinder well
It is required that when required sinking depth location；
S23: if the steel cylinder underground is sink at the designed elevation, terminate；If the steel cylinder well does not sink down into described set
It counts at absolute altitude, then returns to the S21.
6. the construction method of steel cylinder well according to claim 5, which is characterized in that sunk down into described in the S21 described
Target position, comprising:
The steel cylinder well is clamped with oil cylinder rigidly connected clamping device using in the pipe-rocking machine；
During the steel cylinder underground is heavy, the oil cylinder drives the steel cylinder well or more, rolls.
7. the construction method of steel cylinder well according to claim 6, which is characterized in that it is described using in the pipe-rocking machine with oil
Before the rigidly connected clamping device of cylinder clamps the steel cylinder well, further includes:
The pipe-rocking machine is connect with the digging machine with hydraulic control system.
8. the construction method of steel cylinder well according to any one of claims 1 to 7, which is characterized in that described to be incited somebody to action with pipe-rocking machine
Steel cylinder sinks down into target position, is formed after the steel cylinder well further include:
Pipe laying, inspection shaft inside the steel cylinder well；
Connection between all steel cylinders is cut and is disconnected；
All steel cylinders for removing described in bottommost except steel cylinder in the steel cylinder well are taken out.
9. the construction method of steel cylinder well according to claim 8, which is characterized in that described to be installed inside the steel cylinder well
Before pipeline, inspection shaft, further includes:
By the steel cylinder well inner excavation to cutting depth, and back cover；The cutting depth are as follows:
H=h1-r+h2+d；
Wherein, H is the cutting depth；h1For the depth for meeting the requirements the required pipeline commissioning in design process；r
For the exradius of the maximum pipeline perpendicular to the steel cylinder well central axial direction；h2To promote platform height；D is institute
State the back cover thickness of steel cylinder bottom.
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| CN113585314A (en) * | 2021-08-03 | 2021-11-02 | 广州市市政集团有限公司 | Static pressure type open caisson machine |
| CN114541455A (en) * | 2022-03-14 | 2022-05-27 | 三峡绿色发展有限公司 | Steel open caisson construction system and method based on micro pipe jacking and pipe shaking well technology |
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| CN114541455A (en) * | 2022-03-14 | 2022-05-27 | 三峡绿色发展有限公司 | Steel open caisson construction system and method based on micro pipe jacking and pipe shaking well technology |
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Application publication date: 20181214 |